Hinged last.



1 ITO-890,512. PATENTBD JUNEQ, 1908.

LLLLLLLLLLLLLLLLLLLL 23.1907.

H. A. HENDERS HINGED LA I Lasts, of" which thefo HENRY A. HENDERSON, LYNN, MASSACHUSETTS.

HINGED LAST.

Specification of Letters Patent.

Patented June 9, 1908.

Application filed July 23, 1907. Serial No. 385,157.

To all whom it may concern:

Be' it known thatl, HENRY A. HENDER- so of Lynn, in thecounty of Essex and State of Massachusetts, have invented certain new and useful Improvements in Hinged lowing is a specification. 4

This invention relates to a transversely divided last comprising a forepart and a heel part, saidxparts being connected by a hinge in such a manner that the last can be shortened swinging one of the parts out of its operative relation to-the other: art.

The invention has fbr its object to provide certain improvements in lasts of this character relating mainly to the hinge which connects the two'parts, and the method of securing the hinge to the parts of the last.

The invention consists in the improvements Which I will now proceed to describe and claim.

Of 'theaccompanying drawings forming a part of this specification, Figure 1 represents a longitudinal section of a last embodying my invention, the hinge of. the .last being shown inside elevation. Fig. 2 represents a perspective view of the hinge shown in Fig. 1. ig. 3 represents'a section onthe line 3-3 of Fig. 1. Fig. 4 represents a view similar to Fig. lfshowinga somewhat different embodyment of my invention. Fig. 5 represents a View corres onding to Figs. 1 and 4, and showing sti another embodimentof theinvention. Fig. 6 represents'a section on the line 66of Fig. 5.

The same letters of reference indicate the same parts in all the figures.

Inthedrawings 12 represents the forepart I and 13 the heel part of a transverselydivided last, the said: partsbeing :so constructed and connected thatthe last may be maintained in the extended operative position shown by full lines inFigs. 1, 4 and 5, but may be shortened by a swinging movement of one of the parts relatively --to the 1 other as indicated in;Fig.. 1, where the heel part is shown bydotted lines as swung out of its 0 erative relationto the forepart thereby in 'e ect shortenin the lastant permitting 50 a boot or shoe whlch closely fits the last in its extended position, to be readily removed from the last. 1

The arts v12 and 13- are provided with reciprocai bearing faces adaptedto support the compressive longitudinal strain of the last when the latter 1s in use in a boot or shoe.

parts 12 and 13 are curved to form reciprocal caring faces, one of which has an outward and the other an inward curvature. In Fig. 1, I show the rear end of the forepart section provided with an outwardly curved bearing face 14, the heel art being rovided with an inwardly curve construction shown in Fi .4, the forepart has an inwardly curved iearing face 14, while the heel part has an outwardly curved bearing face 15. In each case the curved bearing faces are concentric with the hinge center or oint on which one of the arts of the last is adapted to swing. In t e construction shown in Figs. 5 and 6, the fore and bearing ace 15. In the heel parts 12 and 13 are provided below the hinge center with flat reciprocal bearing faces 17 18. Above these bearing faces, the ends of the parts 12 and 13 are beveled to form faces 19 and 20 between which is a 'V- shaped gap or space which permits the swin ing movement of one of the parts relativeFy to the other to shorten the last.

Each of the formations above described is common in lasts of this character. My invention does not reside in the formation of the meeting ends. of the parts 12 and 13, but

relates particularly to the hinge hereinafter described and "to the engagement of the hingewith the fore and heel parts.

In carrying out my invention, I provide a hinge which is composed of two general parts ormembers articulately bonded, each member including an anchoring plug adapted to enter a hole bored for its reception in the last, the hinge having therefore two anchoring plugs which are substantially parallel with each other when the hinge is in the position it assumes when the last is extended, so that the plugs may be inserted simultaneously in two parallel holes 21 21 bored for theirreception in the forepart and heel part The parts ofthe hinge are articulately bonded before the application of the hinge tothe last, and the provision of the parallel anchoring plugs enables thelast tobe prepared for the reception of the hinge by the simple operation of boring two parallel holes therein, an operation which. is capable of being performed simultaneously by two boring tools Wl1eII&"thf 5hlDg6l has "thus been inserted the connection between the parts of the last is completed. In the construction shown in Figs. 1, 2, 3,

and 4, the hingecomprises two anchoring 'pli1gs 22and-23, the latter having ,a longifi-i rtudmal slot in one of its end portions, anda f g f'c'onnectlng plate 24 which is ri idly aifixed 5 to or formed integrally with t e plug 22,

and has an car 25 which enters the slot in the plug 23, and isconnected with said plug by a pivot in 26, whichconstitutes the hinge jrcenter. T e late 24 has a shoulder 27 at one side of the car 25, the said shoulder being arranged to abut against the exterior of the plug 23. The shoulder 27 and the portion of the plug against which'it abuts,

' constitute stop members to limit the move men't of-the hinge to its extended position. ,In the construction shown in Figs. 1, 2 and l 3, the plug 23 to which the plate 24 ispivtween the'plu'gs by a and- 29, are connected by plates rigidly attaehed to the plugs, and connected be pivot pin 30, there being preferably three p ates, 31 and 32 32. The'plate 31 is rigidly attached to or formed integrally with theplug 28, and projects between the plates 32 32, which are rigidly at- 1 tached to or formed integrally with the plug plugs, are preferably bored from the bottom described embodiments of-my invention, a

29, and are spaced apart to receive the plate 31 between them. The plate 31 is provided with a segmental slot 33, and the plates 32 are provided with a pin 34, which passes throughsaid slot, one end of the slot and the '34 cgnstituting stop members which imit the movement of the hinge to the extended position of the last.

The holes 21 which receive the anchoring of the last, and their outer ends are closed by filling pieces after the plugs have been inserted.

It will be seen that in each of the abovehinge is provided comprising two parallel plugs'ada ted to be inserted simultaneously in paralle holes bored for their reception in the last, the hinge having one member which constitutes a rigid stop for the other member and for the correspondi n portion of the last when the last is extende so that the act of applying the hinge to the last to articulately connect the fore and heel arts, also provides the last with a stop to lindlt the movement of the parts toward their extended position. In the construction shown in Figs. 1, 2, 3 and 4, the said stop is formed by the plug 23 against which the shoulder 27 on the plate 24 abuts. In the construction shown 1n Figs. 5 and 6 thestop is the right-hand end of the slot, 33, as viewed-in liig. 5 the said end of the slot serving as an abutment against which the pin-34: abuts. By thus providing a hinge, which also serves as a stop, I obviate the necessity of forming angular shoulders on themeeting faces of the fore-part and heel part, so that said parts may e separated from each other by forming a simple curved or straight out between the holes bored for the reception of the hinge plugs, and after said holes have been bored.

I claim:

1. A hinge for a transversely divided last comprising two members articulately bonded, each member including an anchoring plug adapted to enter a hole bored for its reception in a last, the said plugs beingsubstantially parallel when the hinge is extended, one member constituting a rigid stop for the other member v and for the corresponding portion of the last, whenthe last is extended.

2. A hinge for a transversely divided last comprisin two anchoring plugs adapted to enter para lel holes bored for their reception in a last, and a plate rigidly attached to one plug and pivoted to the other plug, the lastmentioned plug constituting a rigid sto member for the plate and for the correspon ing ortion of the last when the last is exf ten ed. I

3. A hinge for a transversely divided last comprising two anchoring plugs, one ofwhich has a slot at one end, and aplaterigidly attached to the other plug, and having, an ear pivoted in the said slot and a shoulder which bears on the exterior of the slotted plug when the hinge is extended.

4. A transversely'divided last having a hole bored in its forepart and a corresponding hole bored in its heel. part, said holes being parallel with each other when the last is extended, anda hinge composed of two members articulately bonded, each member including an anchoring plu inserted in one of said holes, one of said p ugs constituting a rigid stopfor the other member, and the corresponding part of the last, when the last is extended. I

5. A last having a hole bored in its fore- .part, and a corresponding hole bored in its heel part, said holes being parallel with each other when the last is in its operative form, a transverse cut formed between said holes,

and free from angular offsets or shoulders,

signature, in resence of two witn'esses.

- NRY A. HENDERSON.

Witnesses: 1

C. F. BROWN, P. W. Pnzzs'r'rr. 

